Fig. 4-56. Radiator Panel Arrangement — Concept No. 1 the headers will move laterally relative to each other and the panels will rotate as shown. This lateral movement due to temperature differential will take place during startup and shutdown and during occultation. Figure 4-57 shows radiator panel arrangment, Concept No. 2. This concept is similar to the Fig. 4-58. Radiator Panel Arrangement — Concept No. 3 Since the distance between the headers is doubled the angular rotation of the panels is approximately half that of the previous arrangment, and a quarter that of Concept No. 1. Note that, although there are two rows of panels, each panel is separately placed between the headers, alternately in the upper and lower rows. A 20m (65.6') long feed tube is required for each panel. Figure 4-59 shows a typical arrangement of the radiator area associated with three 360 MWe Fig 4-59. Radiator Configuration Concept turbogenerators. Each radiator section required per turbogenerator consists of 70 panels. The tapering headers are fed from the center. Input and output headers are fixed at their centers relative to each other so that movement due to thermal expansion is confined to the ends which are free. The structure which supports the radiator is designed to accommodate feeder length changes. In system optimization initial runs produced parametric descriptions of power generation modules Fig. 4-57. Radiator Panel Arrangement — Concept No. 2 previous arrangment except that the headers are fed at their centers instead of at one end. The headers are fixed relative to each other at their centers with their ends free to expand. If the number of panels is the same as in the previous concept then the rotation of the end panels will be approximately half that of the previous concept, since the differential expansion of the header ends is halved. Figure 4-58 shows radiator panel arrangment, Concept No. 3. This concept is similar to the previous arrangment except that there are two rows of radiators between the input and output headers. As with the previous concept, the headers are fixed at their centers relative to each other and the ends are free to move.
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